* {
    margin: 0;
    padding: 0;
}

.right {
    width: calc(100vw - 200px);
    height: calc(100vh - 50px);
    /*overflow: auto;*/
}

.manage > div:nth-child(2) {
    display: flex;
}
/*-----------top---------------*/
.top {
    height: 50px;
    background-color: rgb(34, 34, 34);
    display: flex;
    justify-content: space-between;
    color: #FFFFFF;
}
.top > div:first-child {
    display: flex;
    font-family: 宋体, serif;
    font-weight: bold;
    align-items: center;
}
.top > div:first-child > div{
    margin: 0 10px;
}
.top img{
    border-radius: 40px;
    border: 1px solid #FFFFFF;
    cursor: pointer;
}
.top > div:nth-child(2){
    display: flex;
    align-items: center;
    margin: 0 40px;
}
.top > div:nth-child(2) > div{
    margin: 0 10px;
    cursor: pointer;
}


/*------------left--------------*/

.left {
    width: 200px;
    height: calc(100vh - 50px);
    background-color: rgb(34, 34, 34);
    text-align: center;
}
.left > div{
    cursor: pointer;
    padding: 10px 0;
    color: #FFFFFF;
}
.left > div > div:first-child:hover{
    background-color: red;
}

.left > div > div:nth-child(2){
    text-indent: 2em;
}
.left > div > div:nth-child(2) > div:hover{
    background-color: red;
}
/*关闭所有二级菜单*/
.left > div > div:nth-child(2){
    display: none;
}
/*默认打开第一个二级菜单*/
.left > div:nth-child(1) > div:nth-child(2){
    display: block;
}

/*欢迎页面*/
.welcome > img{
    height: 100%;
    width: 100%;
    background-repeat: no-repeat;
}


#newUserName{
    font-weight: bold;
    color: #1E9FFF;
}
